| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1811540 | Physica B: Condensed Matter | 2011 | 7 Pages |
Abstract
RE/Yb co-doped Y2O3 transparent ceramics (RE=Er, Ho, Pr, Tm) were fabricated and characterized from the point of up-conversion luminescence. All the samples exhibit high transparence not only in near-infrared band (NIR) band but also in visible region, which ensures the output of the up-conversion luminescence. Under 980Â nm excitation, green and red emissions were observed in Er, Yb:Y2O3 transparent ceramic, while green emission was detected in Ho, Yb and Pr, Yb co-doped Y2O3 transparent ceramics. In Tm, Yb co-doped Y2O3 ceramic, very intense blue up-conversion luminescence was detected. The dependence of up-conversion emission intensity on the pumping power was measured for each RE/Yb co-doped Y2O3 transparent ceramic, and the up-conversion mechanism was discussed in detail. Meanwhile, the energy transfer efficiency was calculated.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Xiaorui Hou, Shengming Zhou, Tingting Jia, Hui Lin, Hao Teng,